linux-kernel - [PATCH 5.10 024/103] ptp: ptp_ines: prevent build when HAS

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Date:   Fri, 15 Jan 2021 13:27:17 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Randy Dunlap <rdunlap@...radead.org>,
        kernel test robot <lkp@...el.com>,
        Richard Cochran <richardcochran@...il.com>,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH 5.10 024/103] ptp: ptp_ines: prevent build when HAS_IOMEM is not set

From: Randy Dunlap <rdunlap@...radead.org>

[ Upstream commit 1f685e6adbbe3c7b1bd9053be771b898d9efa655 ]

ptp_ines.c uses devm_platform_ioremap_resource(), which is only
built/available when CONFIG_HAS_IOMEM is enabled.
CONFIG_HAS_IOMEM is not enabled for arch/s390/, so builds on S390
have a build error:

s390-linux-ld: drivers/ptp/ptp_ines.o: in function `ines_ptp_ctrl_probe':
ptp_ines.c:(.text+0x17e6): undefined reference to `devm_platform_ioremap_resource'

Prevent builds of ptp_ines.c when HAS_IOMEM is not set.

Fixes: bad1eaa6ac31 ("ptp: Add a driver for InES time stamping IP core.")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: kernel test robot <lkp@...el.com>
Link: lore.kernel.org/r/202101031125.ZEFCUiKi-lkp@...el.com
Acked-by: Richard Cochran <richardcochran@...il.com>
Link: https://lore.kernel.org/r/20210106042531.1351-1-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/ptp/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/ptp/Kconfig
+++ b/drivers/ptp/Kconfig
@@ -78,6 +78,7 @@ config DP83640_PHY
 config PTP_1588_CLOCK_INES
 	tristate "ZHAW InES PTP time stamping IP core"
 	depends on NETWORK_PHY_TIMESTAMPING
+	depends on HAS_IOMEM
 	depends on PHYLIB
 	depends on PTP_1588_CLOCK
 	help